Patent · US Active

Formation of a capacitor using a sacrificial layer

US10964475B2 · kind B2 · utility

0Cited by
10References
24Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 28, 2019
Grant dateMar 30, 2021
Priority date
Expiry dateFeb 15, 2039

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01G4/005
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

Methods, apparatuses, and systems related to forming a capacitor using a sacrificial material are described. An example method includes forming a first silicate material on a substrate. The method further includes forming a first nitride material on the first silicate material. The method further includes forming a second silicate material on the first nitride material. The method further includes forming a second nitride material on the second silicate material. The method further includes forming a sacrificial material on the second nitride material. The method further includes forming a column of capacitor material through the first silicate material, the first nitride material, the second silicate material, the second nitride material, and the sacrificial material. The method further includes removing the sacrificial material to expose a top portion of the capacitor material.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.